The RMT union is holding industrial action for 48 hours over the issue of the removal of guards from the Overground network.

The RMT say that the 130 guards' jobs that will be lost are safety critical and the move puts millions of passengers lives at risk.

RMT General Secretary Bob Crow said, "RMT have sent out a clear message in the nine to one vote for both strike action and action short of a strike on London Overground over the appalling, cash-driven assault on our guards members and the absolutely essential role that they play.

"These are the very same staff who have been praised for safely evacuating passengers from emergency situations and who are the eyes and ears of the service at a time of growing violence and thefts on our trains. The failure of the TFL senior management, under Boris Johnson's leadership, and the company to pull back from these proposals has forced RMT to announce this strike action."